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    <title>课程表</title>
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      <h1>课程表</h1><br>
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          <td align="center">周一</td>
          <td align="center">周二</td>
          <td align="center">周三</td>
          <td align="center">周四</td>
          <td align="center">周五</td>
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          <td align="center" rowspan="4">上午</td>
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          <td align="center" colspan="6">午休</td>
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          <td align="center" rowspan="4">下午</td>
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